X-Git-Url: https://git.deb.at/?p=deb%2Fpackages.git;a=blobdiff_plain;f=lib%2FPackages%2FSearch.pm;h=ebb1b7d8f1e025ec4d5b48ab8b08877547e0126c;hp=1c369868db94014cc26e8c7bf3186f4da00f8013;hb=d833a5eed5296d1a24c35e8f0802f8291037198d;hpb=bf6d5b1c3221cdd54d613778ce806804a3faf006 diff --git a/lib/Packages/Search.pm b/lib/Packages/Search.pm index 1c36986..ebb1b7d 100644 --- a/lib/Packages/Search.pm +++ b/lib/Packages/Search.pm @@ -1,8 +1,8 @@ # # Packages::Search # -# Copyright (C) 2004-2006 Frank Lichtenheld -# +# Copyright (C) 2004-2007 Frank Lichtenheld +# # The code is based on the old search_packages.pl script that # was: # @@ -23,7 +23,7 @@ # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. # =head1 NAME @@ -58,6 +58,7 @@ our @ISA = qw( Exporter ); our @EXPORT_OK = qw( read_entry read_entry_all read_entry_simple read_src_entry read_src_entry_all find_binaries do_names_search do_fulltext_search do_xapian_search + find_similar ); our %EXPORT_TAGS = ( all => [ @EXPORT_OK ] ); @@ -81,7 +82,7 @@ sub read_entry_all { } } - foreach (split /\000/o, $result) { + foreach (split(/\000/o, $result||'')) { my @data = split ( /\s/o, $_, 8 ); debug( "Considering entry ".join( ':', @data), 2) if DEBUG; if ($opts->{h_suites}{$data[1]} @@ -102,6 +103,8 @@ sub read_entry { #FIXME: make configurable my %fallback_suites = ( + 'oldstable-backports' => 'oldstable', + 'oldstable-volatile' => 'oldstable', 'stable-backports' => 'stable', 'stable-volatile' => 'stable', experimental => 'unstable' ); @@ -194,100 +197,92 @@ sub do_names_search { &$read_entry( $packages, $pkg, $results, $non_results, $opts ); } } -sub do_fulltext_search { - my ($keywords, $file, $did2pkg, $packages, $read_entry, $opts, + +sub do_xapian_search { + my ($keywords, $dbpath, $did2pkg, $packages, $read_entry, $opts, $results, $non_results) = @_; # NOTE: this needs to correspond with parse-packages! my @tmp; foreach my $keyword (@$keywords) { - $keyword =~ tr [A-Z] [a-z]; - if ($opts->{exact}) { - $keyword = " $keyword "; - } - $keyword =~ s/[(),.-]+//og; - $keyword =~ s;[^a-z0-9_/+]+; ;og; + $keyword =~ s;[^\w/+]+; ;og; push @tmp, $keyword; } - my $first_keyword = shift @tmp; - @$keywords = @tmp; - - my $numres = 0; - my %tmp_results; - # fgrep is seriously faster than using perl - open DESC, '-|', 'fgrep', '-n', '--', $first_keyword, $file - or die "couldn't open $file: $!"; - LINE: - while () { - foreach my $k (@$keywords) { - next LINE unless /\Q$k\E/; - } - /^(\d+)/; - my $nr = $1; - debug( "Matched line $_", 2) if DEBUG; - my $result = $did2pkg->{$nr}; + my $stemmer = Lingua::Stem->new(); + my $stemmed_keywords = $stemmer->stem( @tmp ); + + my $db = Search::Xapian::Database->new( $dbpath ); + my $enq = $db->enquire( OP_OR, @$keywords, @$stemmed_keywords ); + debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG; + my @matches = $enq->matches(0, 999); + + my (@order, %tmp_results); + foreach my $match ( @matches ) { + my $id = $match->get_docid(); + my $result = $did2pkg->{$id}; + foreach (split /\000/o, $result) { my @data = split /\s/, $_, 3; -# debug ("Considering $data[0], arch = $data[2]", 3) if DEBUG; + debug ("Considering $data[0], arch = $data[2], relevance=".$match->get_percent(), 3) if DEBUG; # next unless $data[2] eq 'all' || $opts->{h_archs}{$data[2]}; # debug ("Ok", 3) if DEBUG; - $numres++ unless $tmp_results{$data[0]}++; + unless ($tmp_results{$data[0]}++) { + push @order, $data[0]; + } } - last if $numres > 100; + last if @order > 100; } - close DESC; - $too_many_hits++ if $numres > 100; + undef $db; + $too_many_hits++ if @order > 100; - my @results; - foreach my $pkg (keys %tmp_results) { + debug ("ORDER: @order", 2) if DEBUG; + foreach my $pkg (@order) { &$read_entry( $packages, $pkg, $results, $non_results, $opts ); } - } +} -sub do_xapian_search { - my ($keywords, $db, $did2pkg, $packages, $read_entry, $opts, - $results, $non_results) = @_; +sub find_similar { + my ($pkg, $dbpath, $did2pkg) = @_; -# NOTE: this needs to correspond with parse-packages! - my @tmp; - foreach my $keyword (@$keywords) { - $keyword =~ tr [A-Z] [a-z]; - if ($opts->{exact}) { - $keyword = " $keyword "; - } - $keyword =~ s/[(),.-]+//og; - $keyword =~ s;[^a-z0-9_/+]+; ;og; - push @tmp, $keyword; + my $db = Search::Xapian::Database->new( $dbpath ); + my $enq = $db->enquire( "P$pkg" ); + debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG; + my $first_match = ($enq->matches(0,1))[0]->get_document(); + + my @terms; + my $term_it = $first_match->termlist_begin(); + my $term_end = $first_match->termlist_end(); + + for (; $term_it ne $term_end; $term_it++) { + debug( "TERM: ".$term_it->get_termname(), 3); + push @terms, $term_it->get_termname(); } - my $stemmer = Lingua::Stem->new(); - $keywords = $stemmer->stem( @tmp ); - my $db = Search::Xapian::Database->new( $db ); - my $enq = $db->enquire( OP_AND, @$keywords ); - debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG; - my @matches = $enq->matches(0, 100); + my $rel_enq = $db->enquire( OP_OR, @terms ); + debug( "Xapian Query was: ".$rel_enq->get_query()->get_description(), 1) if DEBUG; + my @rel_pkg = $rel_enq->matches(2,20); - my $numres = 0; - my %tmp_results; - foreach my $match ( @matches ) { +# use Data::Dumper; +# debug(Dumper(\@rel_pkg),1); + + my (@order, %tmp_results); + foreach my $match ( @rel_pkg ) { my $id = $match->get_docid(); my $result = $did2pkg->{$id}; foreach (split /\000/o, $result) { my @data = split /\s/, $_, 3; -# debug ("Considering $data[0], arch = $data[2]", 3) if DEBUG; -# next unless $data[2] eq 'all' || $opts->{h_archs}{$data[2]}; -# debug ("Ok", 3) if DEBUG; - $numres++ unless $tmp_results{$data[0]}++; + debug ("Considering $data[0], arch = $data[2], relevance=".$match->get_percent(), 3) if DEBUG; + next if $data[0] eq $pkg; + unless ($tmp_results{$data[0]}++) { + push @order, $data[0]; + } } - last if $numres > 100; } undef $db; - $too_many_hits++ if $numres > 100; - foreach my $pkg (keys %tmp_results) { - &$read_entry( $packages, $pkg, $results, $non_results, $opts ); - } + debug ("ORDER: @order", 2) if DEBUG; + return @order[0..10]; } sub find_binaries {